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41. http://www.adass.org/adass/proceedings/adass03/reprints/P9-13.pdf
Astronomical Data Analysis Software and Systems XIII ASP Conference Series, Vol. 314, 2004 F. Ochsenbein, M. Al len, and D. Egret, eds. NEWFIRM Software--System Integration Using OPC P. N. Daly NOAO, P. O. Box 26732, Tucson AZ 85726-6732, USA Abstract. ... The design has two novel features. ... NEWFIRM Software Design NEWFIRM Software--System Integration Using OPC 739 Integrating these diverse software systems into a maintainable and configurable whole is the underlying challenge. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P9-13.pdf -- 195.9 Кб -- 27.08.2004
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42. http://www.adass.org/adass/proceedings/adass03/reprints/P9-11.pdf
Astronomical Data Analysis Software and Systems XIII ASP Conference Series, Vol. ... The WFCAM instrument software Survey preparation Observation preparation Observation management 733 Local control system TCS Observation control and sequencing Camera channel 1 Data handling system Visualisation Ultracam system On-line data reduction Archiving Camera channel 2 Instrument mechanisms Dual Xeon Real-time system P5 Data reduction system Camera channel 4 Camera channel 3 Figure 1. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P9-11.pdf -- 71.8 Кб -- 27.08.2004
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43. http://www.adass.org/adass/proceedings/adass03/reprints/P9-10.pdf
Astronomical Data Analysis Software and Systems XIII ASP Conference Series, Vol. ... Pro ject Data All details concerning a pro ject TAG and queue information, contact addresses, etc. are stored in the Feedback system as pro ject data. ... When the Observer isn't there: The OMP Feedback System Time accounting 731 At the end of each night staff use a tool to adjust or confirm the time spent on pro jects observed starting from automatic estimates provided by the OMP. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P9-10.pdf -- 69.7 Кб -- 27.08.2004
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44. http://www.adass.org/adass/proceedings/adass03/reprints/P8-5.pdf
... The LOFAR Central Processor Facility The central processor of LOFAR should provide the necessary processing and storage capacity for the applications running on it. ... For these applications, we can identify three key processing types: · For sky imaging applications, the central processor is used for correlation, beamforming, integration and, after short term storage, calibration and image creation. ... Therefore the same application can be mapped onto the hardware in multiple ways. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P8-5.pdf -- 58.1 Кб -- 27.08.2004
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45. http://www.adass.org/adass/proceedings/adass03/reprints/P8-3.pdf
Astronomical Data Analysis Software and Systems XIII ASP Conference Series, Vol. ... I describe a new parallel-processing stellar photometry code called QLWFPC2 (http://www.noao.edu/staff/mighell/qlwfpc2) which is designed to do quick-look analysis of two entire WFPC2 observations from the Hubble Space Telescope in under 5 seconds using a fast Beowulf cluster with a Gigabit-Ethernet local network. ... QLWFPC2: Quick-Look WFPC2 Stellar Photometry 681 Figure 1. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P8-3.pdf -- 85.4 Кб -- 27.08.2004
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46. http://www.adass.org/adass/proceedings/adass03/reprints/P8-2.pdf
... The production of Planck simulated data belongs to a class of problems which could get a great deal of advantage from their distribution on to a Grid-enabled environment, and has been identified by the Planck community as an ideal application to evaluate the power of the European Grid infrastructure. ... Such applications, running on separate local computing facilities, simulate the microwave sky, produce time series of Planck data, and process the simulated data. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P8-2.pdf -- 57.9 Кб -- 27.08.2004
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47. http://www.adass.org/adass/proceedings/adass03/reprints/P8-1.pdf
... This paper describes our GAMMS (Gravitational Adaptive Mesh Multigrid Solver) code, which is a numerical gravitational solver, based upon a multigrid (MG) algorithm and a local refining mesh strategy (AMR, Adaptive Mesh Refinement). ... Multigrid solves differential equations using a set of multilevel grids, for an optimal O(N ) computational cost. ... GAMMS: AMR for gravity 671 Figure 1. ... The ensuing code, GAMMS (Gravitational Adaptive Mesh Multigrid Solver) is described in the sequel. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P8-1.pdf -- 220.2 Кб -- 27.08.2004
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48. http://www.adass.org/adass/proceedings/adass03/reprints/P7-9.pdf
... We present a new technique to segregate old and young stellar populations in galactic spectra using machine learning methods. We used an ensemble of classifiers, each classifier in the ensemble specializes in young or old populations and was trained with locally weighted regression and tested using ten-fold cross-validation. ... In this work we propose a Machine Learning (ML) method to determine the age of stellar populations in synthetic galactic spectra. ... Combine results in an ensemble. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P7-9.pdf -- 223.0 Кб -- 27.08.2004
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49. http://www.adass.org/adass/proceedings/adass03/reprints/P7-8.pdf
... In this work we present Evolution Strategies (ES) as an efficient method to approximate the initial conditions of the main interacting group of three galaxies in M81. ... In this first attempt we use nonself-gravitating simulations to approximate the initial conditions; even with that restriction our method reproduces the density distribution of the three galaxies with great precision. ... Parameters to produce the simulation in Figure 1 Index 1 is for M81, 2 for M82 and 3 for NGC3077 5. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P7-8.pdf -- 103.9 Кб -- 27.08.2004
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50. http://www.adass.org/adass/proceedings/adass03/reprints/P7-7.pdf
... We present the first results of a system for automatic analysis of astronomical images from digitized plates. This system will automaticallyidentifyspectral lines in low resolution spectra employing image processing and analysis. ... Our ob jective is to develop an algorithm of optimal and robust segmentation of stellar spectra on spectral plate images with the purpose of identifying its spectral lines in an automatic form. ... Processes for the automatic identification of spectral lines. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P7-7.pdf -- 519.2 Кб -- 27.08.2004
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51. http://www.adass.org/adass/proceedings/adass03/reprints/P7-6.pdf
Astronomical Data Analysis Software and Systems XIII ASP Conference Series, Vol. 314, 2004 F. Ochsenbein, M. Al len, and D. Egret, eds. Genetic Programming and other fitting techniques in Galactic Dynamics Peter Teuben Astronomy Department, University of Maryland, Col lege Park, MD Abstract. ... The fitting programs in this paper are mainly applicable to analyzing velocity fields of individual galaxies and interacting galaxies, and apply new techniques such as genetic programming. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P7-6.pdf -- 108.7 Кб -- 27.08.2004
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52. http://www.adass.org/adass/proceedings/adass03/reprints/P7-5.pdf
... The automated procedure described here uses an image enhancing technique, segmentation, shape feature extraction and a supervised artificial neural network to classify the galaxies. ... The ma jor challenge is in the development of robust and automated segmentation schemes. ... Goderya, Andreasen, & Philip Overall Automated Galaxy Classification Scheme. on Linux platform, with the exception of interactive thresholding module that was performed by using Khoros Image Processing software 1 . ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P7-5.pdf -- 112.3 Кб -- 27.08.2004
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53. http://www.adass.org/adass/proceedings/adass03/reprints/P7-2.pdf
... 314, 2004 F. Ochsenbein, M. Al len, and D. Egret, eds. Boxiness estimation metho d with fourth order moments Masafumi Yagi National Astronomical Observatory of Japan, Mitaka, Tokyo, 181-8588, Japan Abstract. I present a method to estimate fourth order cosine coefficient of Fourier harmonics, so called boxiness, from second and fourth order moments in Cartesian coordinate. ... 0 (1 - Q2 )2 Q a6 0 (8) Boxiness estimation method with fourth order moments 3. ... An example of boxiness estimation. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P7-2.pdf -- 127.4 Кб -- 27.08.2004
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54. http://www.adass.org/adass/proceedings/adass03/reprints/P7-1.pdf
... In this work we focus on the determination of the relative distributions of young, intermediate-age and old populations of stars in galaxies. Starting from a grid of theoretical population synthesis models we constructed a set of model galaxies with a distribution of ages, metallicities and intrinsic reddening. ... The Proposed Solution Given an observed galaxy spectrum we would like to determine the relative distribution of ages and their intrinsic reddening. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P7-1.pdf -- 98.3 Кб -- 27.08.2004
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55. http://www.adass.org/adass/proceedings/adass03/reprints/P6-7.pdf
... The actual on-orbit data will doubtless suffer from geometric distortion and cosmic rays at some level, while calibration is required to simultaneously derive the sky and flat field in the presence of these effects to a level of better than a part in 10,000. ... Noise No No Yes Yes Distortion No Yes No Yes Base RMS 4.66E-8 2.62E-4 4.00E-4 5.37E-4 Clipping RMS [eff.] ... Noise No No Yes Yes No No Yes Yes CR added No Yes No Yes No Yes No Yes Dist. added No No No No Yes Yes Yes Yes rms w/o CR rej. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P6-7.pdf -- 60.6 Кб -- 27.08.2004
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56. http://www.adass.org/adass/proceedings/adass03/reprints/P6-5.pdf
Astronomical Data Analysis Software and Systems XIII ASP Conference Series, Vol. 314, 2004 F. Ochsenbein, M. Al len, and D. Egret, eds. JPEG 2000 Compression for the Downlink and Archiving of Astronomical Data Janet C. Rountree, Brian N. Webb Science Applications International Corporation, 101 N. Wilmot Rd., ... JPEG 2000, the new International Standard for still image compression, has many unique features that offer advantages for users of astronomical data. ... WT=Wavelet transform. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P6-5.pdf -- 161.0 Кб -- 27.08.2004
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57. http://www.adass.org/adass/proceedings/adass03/reprints/P6-3.pdf
... 314, 2004 F. Ochsenbein, M. Al len, and D. Egret, eds. Representations of distortions in FITS world co ordinate systems Mark R. Calabretta Australia Telescope National Facility, PO Box 76, Epping, NSW 1710, Australia Francisco G. Valdes National Optical Astronomy Observatories, PO Box 26732, Tucson, AZ 85719, USA Eric W. Greisen National Radio Astronomy Observatory, PO Box O, Socorro, NM 87801-0387, USA Steven L. Allen UCO/Lick Observatory, University of California, Santa Cruz, CA 95064, USA...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P6-3.pdf -- 64.0 Кб -- 27.08.2004
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